<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <el-form :model="form" :rules="regRules" ref="regForm">
        <el-form-item prop="username">
          <el-input v-model="form.username" placeholder="请输入用户名称" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
         <el-form-item prop="password">
          <el-input v-model="form.password" type="password" placeholder="请输入用户密码" prefix-icon="el-icon-lock"></el-input>
        </el-form-item>
         <el-form-item prop="repassword">
          <el-input v-model="form.repassword" type="password" placeholder="请输入确认密码" prefix-icon="el-icon-lock"></el-input>
        </el-form-item>
         <el-form-item>
          <el-button type="primary" class="regBtn" @click="regNewUser">注册</el-button>
          <el-link type="info" @click="$router.push('/login')">去登录</el-link>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { reg } from '@/api/user'
export default {
  name: 'regIndex',
  data () {
    // rule:规则
    // value:repassword的值
    // callback: 不管成功还是失败都要调用
    const samePass = (rule, value, callback) => {
      if (value === this.form.password) {
        callback()
      } else {
        callback(new Error('密码与确认密码不一致'))
      }
    }

    return {
      form: {
        username: '',
        password: '',
        repassword: ''
      },
      regRules: {
        username: [
          { required: true, message: '请输入名称', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10的字母数字', trigger: 'blur' }
        ],
        // 必填，6~15位非空字符 \S
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
        ],
        repassword: [
          { required: true, message: '请输入确认密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' },
          { validator: samePass, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    regNewUser () {
      // 手动兜底校验 form组件方法validate()
      this.$refs.regForm.validate(async valid => {
        if (!valid) return

        // 登录功能
        const { data: res } = await reg(this.form)
        // console.log(res)
        // 注册失败
        if (res.code === 1) return this.$message.error(res.message)
        // 注册成功
        this.$message.success('注册成功')
        // 跳转登录页
        this.$router.push('/login')
      })
    }
  }
}
</script>

<style scoped lang='less'>
.reg-container {
  background: url('../../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    padding: 0 15px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .title-box {
      height: 60px;
      background: url('../../assets/images/login_title.png') center no-repeat;
    }

    .regBtn{
      width:100%;
    }
  }
}
</style>
